HAMMER SPRINGS offer the ability to adjust the double-action and/or let-off function of certain pistols to individual requirements. W. C. Wolff Company advises caution when reducing the strength of the hammer spring when a pistol is used for any critical situations such as law enforcement. Reduction of the hammer spring may compromise reliability of the firearm.
SKU: 297
P220 Serial #219166 and below
SKU: 285
P220 above Serial # 219166
Sig P225, P226, P228 and P229
SKU: 326
All P220 thru P229 w/ Plastic Base/Retainer (Short Spring)